Main machine of juice extractor



FIG. 1 is a front elevational view thereof.

FIG. 2 is a rear elevational view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view of a main machine of juice extractor showing my new design. 

The ornamental design for a main machine of juice extractor, as shown and described. 